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31  Forum 2005-2010 (read only) / Troubleshooting / Re: Need help, FAST (please) on: December 10, 2007, 07:05:08 pm
I also ordered the "Arduino Diecimila compatible USB board complete KIT with pre-soldered FT232BL" from NKC on  eBay..
I hope I don't have this problem while I'm messing with it :o

do you think i should order some spare ATMEGA168 chips just in case?  :-/ seeing as I am a total noob at Arduino, microcontrollers, and programming  smiley-grin

not that i don't understand what its about smiley
32  Forum 2005-2010 (read only) / Troubleshooting / Re: jhd 162a 16x2 LCD problems on: October 05, 2009, 11:14:13 am
Quote
Posted by: junkFellow       Posted on: 01.10.2009 at 05:36:55
This problem may occur if R/W (PIN 5) is not connected to GND.

Bingo! that did it smiley thnx :3
33  Forum 2005-2010 (read only) / Troubleshooting / Re: jhd 162a 16x2 LCD problems on: September 24, 2009, 08:26:59 am
I will be retrying this when i get my RBBB and second LCD thru post smiley-wink

the 1st lcd is happily displaying junk from the pc smiley-razz
34  Forum 2005-2010 (read only) / Troubleshooting / Re: jhd 162a 16x2 LCD problems on: September 22, 2009, 07:27:17 am
Well the code looks ok, its all wired up as the sketch said. maybe its my board or something, the sketch was running because i had it send out the message via serial to the monitor so i could make sure.

my board is a custom one running the lillypad bootloader, its getting a little old and  may have lost some of the pins functions, if thats the case then i will have to try another board to be sure.

will get back to u later.

and i dont smoke so no bongs smiley-lol

:EDIT:

The  screen works fine connected to the printer port and running LCDSmartie so its defiantly not that smiley-wink

will dig out my dual core board and test it out on that wen i get a chance..
35  Forum 2005-2010 (read only) / Troubleshooting / Re: jhd 162a 16x2 LCD problems on: September 21, 2009, 06:54:33 pm
thanks i'll give it a try tomorrow smiley

so i could make a voltage divider with 2 resistors and connect the Vee between?

Will let u know how i get on..
36  Forum 2005-2010 (read only) / Troubleshooting / jhd 162a 16x2 LCD problems on: September 21, 2009, 05:33:16 pm
i got this lcd today and tried wiring it up to my test arduino board and loaded a sketch from the arduino17 ide, licuidcrystal. all i get is black boxes. i tried different sketches and still nothing, al is wired up right apart from the contrast where i had to connect pin 3 (Vee) to gnd via a resisitor.

the pic in this thread shows wat i get on screen:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1253042156/0#0

buti cant read german so i have no idea wats going on there smiley-lol

my screen is blue with white txt.

is it obviose im doing summin wrong or is there summin up somewhere?
37  Forum 2005-2010 (read only) / Troubleshooting / Re: chip killing laptop?? on: October 07, 2009, 06:44:35 am
eh? O_o
38  Forum 2005-2010 (read only) / Troubleshooting / Re: chip killing laptop?? on: October 05, 2009, 05:40:57 pm
i got some max232 chips, so i should really make a chip version xD

the transistors i used were 3906 and 3904 ( i think) too tired to look atm smiley-lol
39  Forum 2005-2010 (read only) / Troubleshooting / Re: chip killing laptop?? on: October 05, 2009, 03:33:26 pm
board works fine on other machines O_o

its just on these omnibooks.. dunno why.. its just them..

usb to rs232 is fine tho.. not a single prob there..

will do tests later and stuff..


back to main problem tho.. the chips that wont respond to serial any more.. will attempted reburning of the bootloader work?
40  Forum 2005-2010 (read only) / Troubleshooting / Re: chip killing laptop?? on: October 05, 2009, 09:54:29 am
ok. the rs232 to ttl converter is one i made ages ago and has worked well for ages. the laptops are old and both have rs232 9 pin.

I wouldnt get very far with it if i didnt have a rs232 port on the lapy smiley-lol

and yes i did have the board powered.

the converter i made is to spec with the arduino serial version (non max232) its just a level converter using transistors and stuff.. like i said its been working really well on old laptop.

the thing is that the red led lit up the moment i plugged it into the omnibook, thats not supposed to happen, but it worked at 1st..

the old laptop, a compaq armada didnt have this problem. it worked fine.

i recently got hold of another slightly older model omnibook, that did the same thing, lit up the red led (rx boardside)

this is without the board connected by the way, the led is being lit via the power coming from com1.

so something in the omnibook series of laptops is sending power out when it isnt supposed to. a hardware bug on their part it seems.

when i plug in the usb to ttl i have (reclaimed usb arduino) the lights are fine. but couldnt test it on the board as the damage had been done. it appears that them laptops may have damaged the serial portion of the chips or something..

now i only have 2 chips that respond to programming (tested on main pc using usb-ttl)

i hope that explains things better smiley
41  Forum 2005-2010 (read only) / Troubleshooting / chip killing laptop?? on: October 05, 2009, 05:53:15 am
Hey i think my laptop (an Omnibook XE3) is killing my chips :S
this is using a RS232-TTL adapter..
I thought it was funny when one of the leds on the adapter was lit up after plugging it into the serial port on the laptop.

Attempting to upload to any arduino failed saying it couldnt sync. trying it on another pc resulted the same after trying it on that laptop, witch made me think there is summin up.. now i have pretty much no working chips.. well some work but i cannot reprogram them, and i dont know if my parallel port programming cable works because its throwing back errors too.

now i have on working board that i know of and thats a custom one with lillypad bootloader. unfortunately it wont drive my lcd for some unknown reason.., i wont dare try programming it from that Death Laptop >_>..

annoyingly it killed the chip on my brand new RBBB just after i finished building it -_-

so any chance i can force these chips back into working? i just ordered a usbisp for a more stable icsp device..

oh and one more thing.. i got hold of another omnibook XE3, this one was the one that did in the new chip.. it seems the whole range of HP Omnibook XE3's are arduino chip killers via RS232 Serial.. >_>
42  Forum 2005-2010 (read only) / Troubleshooting / Re: LED light timed cycle problems on: September 29, 2008, 05:19:53 am
Tests seem to have gone well smiley there doesn't appear to be much drift n the timing and the lights have been coming on and going off at around the same time every day and night almost to the minute smiley-grin

thanks for all your help smiley with luck I'll have some nice chillies from all this :3

i may have some adaptions to the basic program to try out soon smiley
like advance and go-bak buttons to set the time roughly (with possible indicator leds to show what time of day its at).
who knows.
43  Forum 2005-2010 (read only) / Troubleshooting / Re: LED light timed cycle problems on: September 26, 2008, 04:30:57 pm
tests still underway. got some bigger LEDs (red white and blue) so there will be more spread of light smiley

the program seems to be running fine, its been going on and off as it should, (not sure about the times tho i forgot to log it smiley-razz)

Im wondering if it would be possible to use some kind of external timepiece (a clock or an old watch with quartz timing) to keep a more precise cycle on it..
44  Forum 2005-2010 (read only) / Troubleshooting / Re: LED light timed cycle problems on: September 23, 2008, 06:57:59 am
no but the gentle cycle of it would also benefit us seeing as we don't get the sun either in them months smiley-wink
45  Forum 2005-2010 (read only) / Troubleshooting / Re: LED light timed cycle problems on: September 23, 2008, 12:49:59 am
thnx. i have his version on test now as well as ure digital suggestion. smiley

i hope to use the fading method tho so i get more realistic daylight effect

its a slow thing tho cos it takes hours to test it smiley-grin
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